Message type: E = Error
Message class:  CNVHCM_PRESEL - TDMS4HCM: Messages for Object Selection 
Message number: 102
Message text: Specify either initial selection IDs or initial objects in step &1
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The SAP error message CNVHCM_PRESEL102 typically occurs during the data migration process, particularly when using the SAP HCM (Human Capital Management) data migration tools. This error indicates that the system requires either initial selection IDs or initial objects to be specified in the relevant step of the migration process.
Cause: The error arises when the migration process is initiated without providing the necessary parameters that define which data should be processed. Specifically, it means that the system expects either: Initial Selection IDs: These are identifiers for specific records or groups of records that you want to migrate. Initial Objects: These refer to the specific objects (like employees, positions, etc.) that need to be included in the migration. If neither of these is provided, the system cannot proceed with the migration, leading to the error message.
Solution: To resolve the CNVHCM_PRESEL102 error, you can take the following steps: Check Migration Settings: Go back to the migration tool or transaction
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